Bowling pin



May 11 ,1926. I 1,583,824

J. W. BISHOP lfatented May 11, 1926 UNITED STATES PATENT OFFICE.

.rosnmr w. BISHOP, or MUSKEGON, MICHIGAN, ASSIGNOR To run BrwNsWIoK-BALKE- GOLLENDER COMPANSL'OF WILMINGTON, DELAWARE, ,A CORPORATION, or DELA- WARE.

BOWLING PIN.

Original application filed February 23, 1924, Serial No. 694,648.v Divided and this application filed February 12, 1925. Serial No. 8,622. 1

This is a division of my application Serial No. 694,648, filed February 23, 1924.

The object of the invention is to provide a composition bowling pin of standard size, shape and weight which can be used in substitution for the ordinary wood .pin, and,

which will be as satisfactory to the bowler as the wood pin. 7

Another object of the invention is to provide a composition bowling pin which will withstand the hard usage to which such pins are subjected and which will stand up better than a wood pin and preserve its size, weight and contour for a longer period.

And a further object of the invention is to provide a composition bowling pin which can be economically manufactured and which will respond to all the requirements of a wood pin and have longer life than a wood pin. 7

In the accompanying drawing I have illustrated a selected embodiment of my improved bowling pin, in which the figure is a vertical central sectional View.

The bowling in is made in the form of a shell and its bo y portion 7 is provided with a chamber 8 and also with an inwardly directed annular strengthening and reinforcing rib 9. This rib is integral with the body and is preferably located in the chamber about midway between the top and bottom of the body opposite that part of the body which receives the impact of the ball in bowling. The rib may be made in various ways, but I prefer that it should taper inwardly, being wider where it joins the body than at its inner edge, as shown in the drawing. An opening 10 is usually provided in the bottom of the pin. A tubular opening 11 is provided in the neck 12 and head 13 of the pin and extends through the top of the head. A metal tube 14 is seated in the tubular opening and its upper end is preferably located flush with the top of the pin. This metal tube strengthens and reinforces the neck and head of the pin and its upper end is adapted to be engaged by a magnet for lifting the pin in automatic pin setting machines. It will be understood, of course, that the tube is permanently secured in the neck and head of the pin in a suitable man* made upon the tube and vulcanizing the shell on the tube, as set forth in'my parent application aforesaid, of which this is a division. A hard rubber compound provides a plastic composition which can be satisfactorily used in making the shell of my improved pin, but any other compound or a composition suitable for the purpose may be employed.

I have found in practice that. a pin can be made in accordance with this invention of the vstandard size, shape and weight and jthat it will stand the hard usage and abuse also known that wood pins become dented and battered and splintered by the impact. of the ball and by the impact of one pin against others and against the kick-backs of the bowling alley, and that the principal weakness of the. wood pin is at its neck,

where the pin breaks more frequently than elsewhere. My invention provides a bowling pin which can be economically manufactured, which will have a much longer life than the wood pin, which will not chip, splinter and wear like the wood pins do, and which is strengthened and reinforced at the neck against the liability of breaking.

My invention can be made by the method set forth in my parent application aforesaid or in any other method available for the purpose and the construction of the pin may be changed as found desirable within the scope of the following claims.

I claim:

1. A composition bowling pin having a hollow body, a solid neck, a head, and an :open ended metallic reinforcing I tube extending axially through the head and neck,

:the inner open end of the tube communicating with the cavity in the body, the open outer end of the tube being exposed at the top of the head, said tube constituting a core-drawing passage, a reinforcement for the neck, and an element for cooperation with the magnet of a magnetic pin setter.

2. A composition bowling pin having a chamber in its body and a tubular opening extending from said chamber through the neck and head oi the pin, and a strengthening and reinforcing metal tube seated throughout its length in said opening.

10 8. A composition bowling pinhaving a chamber in its body, and an opening extending through the neck and head of the pin, an integral annular rib projecting inward from the inner wall of the body approximately midway between the. top'and bottom of the body, and a metalistrengthening and reinforcing member seete'dthroughout its length in the opening in the neck and head of the pin. 7

' JOSEPH RV. BISHOP. 

